Ac contactor normally open and normally closed

- Aug 28, 2019-

Normally open -- the contact is open when the contactor is not working;

Normally closed -- the contact is closed when the contactor is not working;

When working, normally closed contact breaks first, normally open contact closes again;When the contactor coil is cut off, the normally open contact is disconnected first, and the normally closed contact is closed and reset.

Normally open contact means that there is no current between the two contacts is open (that is, not on), normally closed is the opposite.